/Engine/Source/Runtime/Core/Public/Delegates/DelegateInstancesImpl.h
template<typename FuncType, typename UserPolicy, typename... VarTypes> class TCommonDelegateInstanceState : private [IBaseDelegateInstance< FuncType, UserPolicy >](API\Runtime\Core\Delegates\IBaseDelegateInstance)
FDelegateHandle
Handle
The handle of this delegate.
TTuple< VarType...
Payload
Payload member variables (if any).